I think you're missing the point of co witnessing, literally every single red dot available on the market can be co witnessed, this is not a unique EOTech feature.
Additionally, the image you've posted there is simply a guide on how to zero your sight using iron sights that have already been zeroed, again, this is something any red dot sight and/or laser can do.
EOTech sights are designed to be used standalone, while the front sight post will not impede their use it doesn't add ANYTHING to it at all.